Extensible bridge wall with moist air circulation for boiler furnaces.



C. ROUDY. EXTENSIBLE BRIDGE WALL WITH MOIST AIR CIRCULATION FOR BOILER FURNACES.

APPLICATIONJILED FEB. 17 1911.

3 SHEETS-SHEET I- Patented. Oct. 15, 1918.

G. ROUDY.

EXTEHSIBLE BRIDGE WALL WITH MOIST AIR CIRCULATION FOR BOILER FURNACES.

, A?PL|,CAT|0N FILED FEB. 17. 1911.

Patented Oct. 15, 1918..

3 SHEETS-SHEET 2- Yul Noni]: pun, m. r-naro-uvunv. wusumcrmv, n. c.

C. ROUDY. E'XTENSIBLE BRIDGE WALL WITH MOIST AIR CIRCULATION FOR BOILER FURNACES.

APPLICATION FILED FEB. I7. I917. 1,21,843I Patented 0ct.15,1918- 3 SHEETS-SHEET 3- Inventor. 

